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alistair23-linux/fs/proc
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Michal Hocko 4e80153a60 mm, proc: make clear_refs killable 
CLEAR_REFS_MM_HIWATER_RSS and CLEAR_REFS_SOFT_DIRTY are relying on
mmap_sem for write.  If the waiting task gets killed by the oom killer
and it would operate on the current's mm it would block oom_reaper from
asynchronous address space reclaim and reduce the chances of timely OOM
resolving.  Wait for the lock in the killable mode and return with EINTR
if the task got killed while waiting.  This will also expedite the
return to the userspace and do_exit even if the mm is remote.

Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Petr Cermak <petrcermak@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2016-05-23 17:04:14 -07:00
..
Kconfig fs, proc: add help for CONFIG_PROC_CHILDREN 2015-07-17 16:39:52 -07:00
Makefile proc: Implement /proc/thread-self to point at the directory of the current thread 2014-08-04 10:07:11 -07:00
array.c procfs: expose umask in /proc/<PID>/status 2016-05-20 17:58:30 -07:00
base.c procfs: fix pthread cross-thread naming if !PR_DUMPABLE 2016-05-20 17:58:30 -07:00
cmdline.c fs/proc: don't use module_init for non-modular core code 2014-01-23 16:37:02 -08:00
consoles.c fs/proc: don't use module_init for non-modular core code 2014-01-23 16:37:02 -08:00
cpuinfo.c fs/proc: don't use module_init for non-modular core code 2014-01-23 16:37:02 -08:00
devices.c fs/proc: don't use module_init for non-modular core code 2014-01-23 16:37:02 -08:00
fd.c switch all procfs directories ->iterate_shared() 2016-05-02 19:49:30 -04:00
fd.h proc: Move proc_fd() to fs/proc/fd.h 2013-05-01 17:29:39 -04:00
generic.c switch all procfs directories ->iterate_shared() 2016-05-02 19:49:30 -04:00
inode.c kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
internal.h proc: Allow creating permanently empty directories that serve as mount points 2015-07-01 10:36:41 -05:00
interrupts.c fs/proc: don't use module_init for non-modular core code 2014-01-23 16:37:02 -08:00
kcore.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
kmsg.c fs/proc: don't use module_init for non-modular core code 2014-01-23 16:37:02 -08:00
loadavg.c fs/proc: don't use module_init for non-modular core code 2014-01-23 16:37:02 -08:00
meminfo.c mm/page_alloc.c: calculate 'available' memory in a separate function 2016-03-17 15:09:34 -07:00
namespaces.c switch all procfs directories ->iterate_shared() 2016-05-02 19:49:30 -04:00
nommu.c vfs: add seq_file_path() helper 2015-06-23 18:01:07 -04:00
page.c mm: rename _count, field of the struct page, to _refcount 2016-05-19 19:12:14 -07:00
proc_net.c switch all procfs directories ->iterate_shared() 2016-05-02 19:49:30 -04:00
proc_sysctl.c switch all procfs directories ->iterate_shared() 2016-05-02 19:49:30 -04:00
proc_tty.c proc: remove proc_tty_ldisc variable 2014-08-08 15:57:22 -07:00
root.c switch all procfs directories ->iterate_shared() 2016-05-02 19:49:30 -04:00
self.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
softirqs.c fs/proc: don't use module_init for non-modular core code 2014-01-23 16:37:02 -08:00
stat.c genirq: Prevent proc race against freeing of irq descriptors 2014-12-13 13:33:07 +01:00
task_mmu.c mm, proc: make clear_refs killable 2016-05-23 17:04:14 -07:00
task_nommu.c proc: revert /proc/<pid>/maps [stack:TID] annotation 2016-02-03 08:28:43 -08:00
thread_self.c wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
uptime.c cputime: Default implementation of nsecs -> cputime conversion 2014-03-13 15:56:43 +01:00
version.c fs/proc: don't use module_init for non-modular core code 2014-01-23 16:37:02 -08:00
vmcore.c crash_dump: Add vmcore_elf32_check_arch 2016-05-13 14:01:59 +02:00